Everton boss David Moyes was left frustrated after their 1-0 defeat to Arsenal.
The Blues suffered a 1-0 reverse at Goodison. But it may have been a different story had an offside flag not denied Royston Drenthe a first-half goal.
Moyes said after the game: "Apart from the first 20 minutes I thought we played as well as Arsenal and were really unlucky not to take something from the game.
"There were five decisions which were onside, I wouldn't just come up here and say it, I have checked. It was a goal.
"We have had a sore deal the last few games, we have had really poor decisions in the games against us. It cost us in the end."